I know it is illegal to burn wood on a spare the air night, but does that include a Duraflame log? Just asking.....

Great question, don't have the answer. Brings me to another question, who the heck enforces that anyway, my neighbor has yet to find a piece of wood he wouldn't like to burn in the past four years from sept through april.
It's sadly become a joke around our house.

The Bay Area Air Quality Management District regulates/enforces such matters. Their website address is:
Link.
They should be able to answer both of your queries.

And yes, even Duraflame logs are taboo on "Spare the Air Night".

The entire concept is largely crap, but that is a topic for another thread.